/
yaml.go
67 lines (58 loc) · 1.8 KB
/
yaml.go
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// Copyright 2017 Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gendeployment
import (
"bytes"
"fmt"
"strings"
"k8s.io/helm/pkg/chartutil"
"k8s.io/helm/pkg/engine"
"k8s.io/helm/pkg/proto/hapi/chart"
"k8s.io/helm/pkg/timeconv"
)
// TODO: add tests based on golden files. Need to fix up helm charts first, since they're not correct atm.
// Today they spit out multiple auth deployments, we need to fix that then we can build golden outputs.
func yamlFromInstallation(values, namespace, helmChartDirectory string) (string, error) {
c, err := chartutil.Load(helmChartDirectory)
if err != nil {
return "", err
}
config := &chart.Config{Raw: values, Values: map[string]*chart.Value{}}
options := chartutil.ReleaseOptions{
Name: "istio",
Time: timeconv.Now(),
Namespace: namespace,
}
vals, err := chartutil.ToRenderValues(c, config, options)
if err != nil {
return "", err
}
files, err := engine.New().Render(c, vals)
if err != nil {
return "", err
}
out := &bytes.Buffer{}
for name, data := range files {
if len(strings.TrimSpace(data)) == 0 {
continue
}
if _, err = fmt.Fprintf(out, "---\n# Source: %q\n", name); err != nil {
return "", err
}
if _, err = fmt.Fprintln(out, data); err != nil {
return "", err
}
}
return out.String(), nil
}